Visuals: Normal mapping & dynamic lighting

[lazd]

Add dynamic lighting to the models.

[varglbargl]

The ships come packaged with bump mapping materials but I can't figure out how to make physijs.createMaterial use phong materials which is required for bump mapping. Invested way too much time in this and moving on.

[lazd]

@ehannum, sounds good. You can usually find @chandlerprall on IRC, I'm sure he could provide some quick insight on issues like this.

[chandlerprall]

@ehannum I just tried using Phong material instead of Lambert in the Jenga example and it worked fine:

table_material = Physijs.createMaterial(
            new THREE.MeshPhongMaterial({ map: THREE.ImageUtils.loadTexture( 'images/wood.jpg' ), ambient: 0xFFFFFF }),
            .9, // high friction
            .2 // low restitution
        );